update CONTRIBUTING.md to test gha pr instructions update

[roslynwythe]

Fixes #6

What changes did you make?

• update CONTRIBUTING.md

Why did you make the changes (we will use this info to test)?

• to test gha pr instructions update

[github-actions]

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test contrib instruction

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[roslynwythe]

This was intended to merge into roslynwythe/website. Closing so it doesn't get accidentally merged.